ChatPDF
AI SummarizationAI-powered PDF chat tool that lets you upload PDF documents and ask questions in natural language to get instant, accurate answers with source references.
What is ChatPDF?
ChatPDF is an AI-powered document interaction tool that transforms how you read and analyze PDF files. Simply upload a PDF — whether it's a research paper, textbook, legal contract, or financial report — and start asking questions in natural language. The AI reads and understands the entire document, then provides precise answers with references to the relevant pages. It supports PDFs up to 10,000 pages and 32 MB in size, making it suitable for even the most extensive documents. ChatPDF is especially popular among students, researchers, and professionals who need to quickly extract key information from lengthy documents. It supports over 50 languages, allowing you to ask questions in a different language than the document itself. The free tier allows 2 PDFs per day with 50 questions each, while the Plus plan removes these limits.
Pricing Plans
Key Features
Pros & Cons
Pros
- ●Extremely intuitive — just upload and start asking questions
- ●Supports documents up to 10,000 pages and 32 MB
- ●Provides source page references for every answer
- ●Multilingual support — ask in any language regardless of document language
- ●Generous free tier for casual use
Cons
- ●Limited to PDF format only — no Word, Excel, or other file types
- ●Free plan restricted to 2 PDFs and 50 questions per day
- ●May struggle with heavily formatted tables or complex layouts
- ●Cannot process scanned PDFs without OCR text layer
Frequently Asked Questions
Q. What types of PDFs can ChatPDF handle?
A. ChatPDF can process any text-based PDF including research papers, textbooks, legal documents, financial reports, and manuals. It supports files up to 10,000 pages and 32 MB. However, scanned image-only PDFs without an OCR text layer are not supported.
Q. Is ChatPDF free to use?
A. Yes, ChatPDF offers a free tier that allows 2 PDF uploads per day with up to 50 questions each. For heavier use, the Plus plan at $5/month provides unlimited PDF uploads and up to 1,000 questions per day.
Q. Can I ask questions in a different language than the document?
A. Yes, ChatPDF supports over 50 languages. You can upload a document in English and ask questions in Japanese, or vice versa. The AI will respond in the language you use for your question.
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